Powerful DC Surge Protection for Maximum Safety of Photovoltaic Systems

Combiner-Box mit Überspannungsschutz (SPD – Surge Protection Device)
Reliable DC surge protection is essential to protect PV systems from long-term damage. Transient overvoltages on the DC side of PV systems caused by lightning strikes, grid disturbances or switching operations can damage inverters, modules and cables – resulting in significant yield losses. HIS surge protection solutions effectively protect PV systems and permanently increase system availability.
Oliver Glenz
Oliver GlenzGet advice now
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Generatoranschlusskasten – HISbox: zuverlässig

Reliable

The integrated DC surge protection safeguards all critical PV components and permanently increases system availability – even under demanding environmental conditions.

Generatoranschlusskasten – HISbox: smart

Simple

Thanks to compact design, clear structure and optional plug-and-play elements, the boxes can be installed quickly and safely – ideal for smooth project workflows.

Generatoranschlusskasten – HISbox: konfigurierbar

Individual

Flexible cable entries such as cable glands, PV connectors or flying leads enable perfect adaptation to any system configuration or specification.

Why Surge Protection for PV Systems Is Essential

PV systems are permanently connected to outdoor modules via their DC cables. This makes them particularly vulnerable to overvoltages.

DC-Combiner mit Feuerwehrschalter und automatischer Wiedereinschaltfunktion für 6 MPPT, 1000 V, MC4-Stecker/Buchse

Professional surge protection for solar systems prevents:

  • Damage to critical components

  • Costly downtime

  • Performance losses due to undetected faults

  • Safety risks during maintenance and operation

With integrated DC surge protection, the entire system remains stable, safe and efficient – from residential rooftop systems to utility-scale parks.

Oliver Glenz
Oliver Glenz

Request surge protection solutions for your PV project now

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HIS Overvoltage Protection Boxes (SPD) – Reliable DC Surge Protection for Every PV System

HIS surge protection solutions provide robust, standards-compliant protection for all DC and AC system types. They are integrated into numerous HISbox systems and effectively protect PV generators, inverters and data cables against transient overvoltages.

Überspannungsschutz-Box für Wohngebäude mit 2 MPPT und Flying Leads

Advantages:

  • Designed for high PV currents and demanding environments

  • Fast response time for optimal protection

  • Industry-standard components from leading manufacturers

  • Long service life and low maintenance requirements

  • Flexibly configurable for any project size and grid requirement

SPD Technology: Type 2+3 and Type 1+2+3 Overview

  • Protection against switching surges and indirect lightning effects

  • Ideal for residential buildings, commercial systems and PV rooftop installations

  • High protection performance in a compact design

Which Systems Is the HIS DC Surge Protection Suitable For?

  • Residential – compact solutions for private rooftop systems

  • Commercial & Industrial – robust designs for industrial rooftops

  • Utility Scale – high-voltage SPD for 1500V systems

  • Repowering – retrofit surge protection for existing systems

Whether new PV system, system expansion or modernisation: HIS surge protection ensures long-term safety and stable yields.

Oliver Glenz

Our experts support you in selecting the optimal PV DC surge protection for your system

Get in touch
Oliver Glenz – Sales and Division Management
+49 (0) 6068 9314 430sales@his-renewables.com